class DrawView: NSView {

    ..................

    let delegate = NSApplication.sharedApplication().delegate as! AppDelegate

    delegate.appArray = myArray.flatMap { $0.coord() }
}

class AppDelegate: NSObject, NSApplicationDelegate {

@IBOutlet weak var window: NSWindow!
@IBOutlet weak var drawingView: DrawView!
@IBOutlet weak var label: NSTextField!

var appArray: [CGPoint] = []

    func applicationDidFinishLaunching(aNotification: NSNotification) {

        label.textColor = NSColor(calibratedRed: 0.85, green: 0, blue: 0.05, alpha: 0.7)
        label.font! = NSFont(name: "Arial Bold", size: 60)!
        label.backgroundColor = NSColor.clearColor()

        dispatch_async(dispatch_get_main_queue(), {
            self.label.stringValue = "(self.appArray.count/4)"
            })

        for pointIndex in 0..<appArray.count {

            let point = CGPoint(x:(appArray[pointIndex].x), y:(appArray[pointIndex].y))

            label.sizeToFit()

            label.frame = CGRect(origin: point, size:
                          CGSize(width: label.bounds.width, height: label.bounds.height))
        }
    }
}

class AppDelegate: NSObject, NSApplicationDelegate {

@IBOutlet weak var window: NSWindow!
@IBOutlet weak var drawingView: DrawView!
@IBOutlet weak var label: NSTextField!

var appArray: [CGPoint] = []

    func applicationWillUpdate(aNotification: NSNotification) {

        label.textColor = NSColor(calibratedRed: 0.15, green: 0, blue: 0.75, alpha: 0.3)
        label.font! = NSFont(name: "Arial Bold", size: 60)!
        label.backgroundColor = NSColor.clearColor()

        dispatch_async(dispatch_get_main_queue(), {
            if self.appArray.count != 0 {
            self.label.stringValue = "(self.appArray.count/4)"
            } else {
            self.label.stringValue = ""
            }
        })

            for pointIndex in 0..<(appArray.count/4) {

                let point = CGPoint(x:(appArray[pointIndex * 4].x), y:(appArray[pointIndex * 4].y))

                label.sizeToFit()

                label.frame = CGRect(origin: point, size: CGSize(width: label.bounds.width, height: label.bounds.height))
            }

    label.wantsUpdateLayer

    }
}